Journal archives for February 2018

February 08, 2018

NYBG EcoQuest February 2018 – Week One

HUNT FOR HEDERA
February 1–7
Thank you @vilseskog for the link to this Washington Post article about English and Irish Ivy gone wild. Use a hand lens to see if you can identify the two forms described in the article. But be careful! English Ivy and its close relatives contain falcarinol, a compound that causes contact dermatitis. In a study of 127 Danish people, 7.9% were sensitive to falcarinol.

Observations: 115
Places: Manhattan, 87; Bronx, 23; Staten Island, 4.
Observers: @elizajsyh, 68; @dskacc, 16; @danielatha, 10; @Laura622, 7; @plnthunter22, 5.

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Posted on February 08, 2018 15:10 by danielatha danielatha | 5 comments | Leave a comment

February 01, 2018

NYBG EcoQuest January 2018 – Wrap Up

SWEETGUM SIGHTINGS

January 1–31
Thank you for helping document the American Sweetgum in New York City. Did you know that it and Black Cherry are the two dominant canopy trees in forested areas of the City? Together we increased the number of Sweetgum observations in NYC by 234%! With less than 1/100 of one percent of the land area, New York City observations comprise almost 10% of the total Sweetgums observed in North America. Our own @elizajsyh is number four in the nation for Sweetgum observations.

Observations: 394
Observers: @danielatha, 113; @elizajsyh, 91; @mjstrauss21, 37; @dskacc, 28; @margela, 17.
Places: New York, 154; Bronx, 135; Staten Island, 89; Brooklyn, 11; Queens, 3.

Check out the February EcoQuest HUNT FOR HEDERA

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Posted on February 01, 2018 19:52 by danielatha danielatha | 1 comment | Leave a comment

February 14, 2018

NYBG EcoQuest February 2018 – Week Two

HUNT FOR HEDERA
February 1–14
Come to the New York City EcoFlora Volunteer Kickoff. A presentation describing the EcoFlora and EcoQuests will be followed by demonstrations, question and answer session, up-coming events, prizes and refreshments. Keep those Hedera observations coming. Your sightings are helping managers pinpoint problem areas throughout the City.
Observations: 285
Observers: @elizajsyh, 138; @dskacc, 41; @susanhewitt, 33; @danielatha, 21; @plnthunter22, 9.
Species: 2
Places: Manhattan, 236; Bronx, 31; Staten Island, 6; Queens, 8; Brooklyn, 4.

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Posted on February 14, 2018 14:03 by danielatha danielatha | 3 comments | Leave a comment

February 22, 2018

NYBG EcoQuest February 2018 – Week Three

HUNT FOR HEDERA
February 1–21
English Ivy plants are not inherently bad. We introduced them to areas where they have no natural constraints and so they become destructive invaders. Your observations in New York City have improved our knowledge of where these plants occur and how abundant they are-- data that is the foundation for management.

Observations: 649
Observers: @elizajsyh, 164; @danielatha, 162; @susanhewitt, 66; @margela, 56; @plnthunter22, 47.
Species: 2
Places: Manhattan, 438; Bronx, 181; Staten Island, 12; Queens, 9; Brooklyn, 9.

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Posted on February 22, 2018 18:58 by danielatha danielatha | 0 comments | Leave a comment